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Regex that accepts only numbers (0-9) and NO characters [duplicate]
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Your regex ^[0-9] matches anything beginning with a digit, including strings like "1A". To avoid a partial match, append a $ to the end:
^[0-9]*$
This accepts any number of digits, including none. To accept one or more digits, change the * to +. To accept exactly one digit, just r...
File uploading with Express 4.0: req.files undefined
...he repo. If you dig through those dependencies you will see Express 3.x is included, as well as Connect 2.x (which still had a multipart module bundled with it). That is why multipart handling was working "out of the box."
– mscdex
Jun 24 '16 at 8:06
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View the change history of a file using Git versioning
...-follow -p -- path-to-file
This will show the entire history of the file (including history beyond renames and with diffs for each change).
In other words, if the file named bar was once named foo, then git log -p bar (without the --follow option) will only show the file's history up to the point ...
How to use ADB Shell when Multiple Devices are connected? Fails with “error: more than one device an
...se, <Q> to quit:
To avoid typing you can just create an alias that included the device selection as explained here.
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What should main() return in C and C++?
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<stdnoreturn.h>. A conforming implementation may have extensions (including
additional library functions), provided they do not alter the behavior of any strictly conforming program.4)
¶7 A conforming program is one that is acceptable to a conforming implementation.5)
3) A stri...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
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How to avoid using Select in Excel VBA
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Undefined reference to `sin` [duplicate]
...h header file, but when you attempted to link it, you forgot the option to include the math library. As a result, you can compile your .o object files, but not build your executable.
As Paul has already mentioned add "-lm" to link with the math library in the step where you are attempting to gener...
sed or awk: delete n lines following a pattern
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I'll have a go at this.
To delete 5 lines after a pattern (including the line with the pattern):
sed -e '/pattern/,+5d' file.txt
To delete 5 lines after a pattern (excluding the line with the pattern):
sed -e '/pattern/{n;N;N;N;N;d}' file.txt
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What are .NET Assemblies?
...n application, the MSIL code created is stored in an assembly . Assemblies include
both executable application files that you can run directly from Windows without the need for any other
programs (these have a .exe file extension), and libraries (which have a .dll extension) for use by other
applica...